Unlike Gen11, Gen12 hardware supports up to three pixel pipes per
slice.
Unfortunately the kernel interface is somewhat inconsistent between
Gen11 and Gen12: I915_PARAM_SUBSLICE_MASK returns a mask of enabled
*dual* subslices since TGL, so there is half the number of bits per
pixel pipe in the mask. This is worked around here so we're able to
calculate the correct size of each pixel pipe, but the result is
returned in dual subslice units, inheriting the inconsistency from the
kernel -- Reason is that as of now all our Gen12 subslice counts
returned by gen_device_info.c are really dual subslice counts, and the
num_eu_per_subslice counts are also scaled accordingly, so it seems
like it would only make the matter worse if I fixed the units of this
field only without also fixing the rest.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8749>
We'll need that to pick the right query sets between TGL/RKL/DG1.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6518>
This isn't a problem right now because the previous max would give the
same result when aligned to a byte (8bits).
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7288>
The enables removal of gen_device_info::is_cannonlake.
v2: Remove GEN10_FEATURES and GEN10_HW_INFO macros. Suggested by
Lionel.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6899>
Future (discrete) platforms won't have support for get/set tiling. This
function allows our drivers to query for that, by simply trying to get
the tiling from a dummy buffer.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4956>
We will later use the devinfo from iris_bufmgr, where we don't have
access to the screen pointer. And since we are moving it, we can reuse
it in Anv and i965.
v2: return error code and check for it on Anv (Lionel).
v3: Remove anv_gem_get_aperture() from anv_private.h and stubs (Lionel).
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5043>
On all Gen7+ platforms except DG1, the URB is a subsection of the
configurable L3 cache, and so the size can vary. The size listed
in the documentation on those platforms is an "example size", picked
by calculating it based on an arbitrarily chosen L3 config.
Hardcoding a value for those platforms provides no value and only
confuses people trying to fill out these tables when doing hardware
enabling. anv and iris never use this field. i965 uses it to
initialize brw->urb.size, but then updates that in update_urb_size()
to be the correct value, so the initial value doesn't matter.
Delete the values for Gen7+ and update the comment accordingly.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4969>
We'll use this for performance metrics which are different from ICL.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
The device info initializer makes several fuctions internal:
- handling of device override
- updating topology from kernel information
The implementation file is slightly reordered due to the renamed
functions being static.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Rename the original device info initialization routine so callers
don't mistakenly call the wrong one:
gen_get_device_info_from_fd:
Queries kernel for full device info, including topology
details.
gen_get_device_info_from_pci_id:
Partially initializes device info based on PCI ID lookup, when
the kernel is not available.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
With perf queries, initializing the device info is much more complex
than just getting a PCI ID and calling gen_get_device_info. This commit
adds a new gen_get_device_info_from_fd helper in common code which does
all of the requisite kernel queries to get device info including all of
the topology information.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
For now, this keeps the "100 bytes" allocation; we can try to figure out
the correct size as a follow up.
Suggested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
add a new attribute, 'disable_ccs_repack' to gen_device info, which
indicates whether repacking of components in certain pixel formats
before compression needs to be disabled to keep the compatibility
with decompression capability of display controller (gen11+)
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
With the introduction of asymmetric slices in CNL, we cannot rely on
the previous SUBSLICE_MASK getparam to tell userspace what subslices
are available.
We introduce a new uAPI in the kernel driver to report exactly what
part of the GPU are fused and require this to be available on Gen10+.
Prior generations can continue to rely on GETPARAM on older kernels.
This patch is quite a lot of code because we have to support lots of
different kernel versions, ranging from not providing any information
(for Haswell on 4.13 through 4.17), to being able to query through
GETPARAM (for gen8/9 on 4.13 through 4.17), to finally requiring 4.17
for Gen10+.
This change stores topology information in a unified way on
brw_context.topology from the various kernel APIs. And then generates
the appropriate values for the equations from that unified topology.
v2: Move slice/subslice masks fields to gen_device_info (Rafael)
v3: Add a gen_device_info_subslice_available() helper (Lionel)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
There are a couple of ways we can get the fusing information from the
kernel :
- Through DRM_I915_GETPARAM with the SLICE_MASK/SUBSLICE_MASK
parameters
- Through the new DRM_IOCTL_I915_QUERY by requesting the
DRM_I915_QUERY_TOPOLOGY_INFO
The second method is more accurate and also gives us the EUs fusing
masks. It's also a requirement for CNL as this platform has asymetric
subslices and the first method SUBSLICE_MASK value is assumed uniform
across slices.
v2: Change gen_device_info_update_from_masks() to generate topology
and call into gen_device_info_update_from_topology (Lionel/Ken)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
We want to store values coming from the kernel but as a first step, we
can generate mask values out the numbers already stored in the
gen_device_info masks.
v2: Add a helper to set EU masks (Lionel/Ken)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This will be reused to store values reported by the kernel. The main
use case will be for use as the input values of the metric sets
equations for the INTEL_performance_queries extension. By storing this
information in the gen_device_info we make this non GL specific so
this can be reused by Vulkan if we ever have an equivalent extension.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Split out the device info so isl doesn't depend on intel/common. Now
it will depend on the new intel/dev device info lib.
This will allow the decoder in intel/common to use isl, allowing us to
apply Ken's patch that removes the genxml duplication of surface
formats.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
2018-03-05 09:47:37 -08:00
Renamed from src/intel/common/gen_device_info.h (Browse further)
